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200 persons have a skin disease, our of ...

200 persons have a skin disease, our of which 120 presons are effected with chemical `C_(1)`, 50 with chemical `C_(2)` and 30 with chemical `C_(1) and C_(2)` both. Find the number of persons who
(i) are effected with `C_(1) or C_(2)`
(ii) are effected with `C_(1)` but not `C_(2)`
(iii) are effected with `C_(2)` but not `C_(1)`.

Text Solution

AI Generated Solution

To solve the problem step-by-step, we will use the principles of set theory, specifically focusing on union and intersection of sets. ### Given Data: - Total persons affected: 200 - Persons affected by chemical \( C_1 \): 120 - Persons affected by chemical \( C_2 \): 50 - Persons affected by both chemicals \( C_1 \) and \( C_2 \): 30 ...
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